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Why I did it
Transceiver EEPROM not found when system boot up.
If I2C control is change to CPU before reboot, no other method to change it back to BMC before this modified.
How I did it
When system boot up in this one time service, change I2C back to BMC and check is really back to BMC. If not, cold reset the BMC.
How to verify it
Testing with cold reboot / sw reboot in SONiC before I2C select to CPU and BMC
Which release branch to backport (provide reason below if selected)
Description for the changelog
A picture of a cute animal (not mandatory but encouraged)